汽车挡泥板滚塑成型材料试验研究  

Testing Study on the Materials of Truck Fender in Rotational Molding

作　　者：张华[1] 舒玉光[2] 刘娟[2] 刘运波[2] 

机构地区：[1]吉林大学工商管理学院,吉林长春130025 [2]吉林大学材料科学与工程学院,吉林长春130025

出　　处：《工程与试验》2009年第1期28-31,共4页Engineering and Test

摘　　要：对汽车挡泥板滚塑成型原料进行了研究,为得到高抗冲击性能的树脂原料,利用高密度聚乙烯(HDPE)对线性低密度聚乙烯(LLDPE)进行共混改性,通过热氧老化法确定两原料的最佳共混配比,然后考察了共混树脂原料的加工热稳定性,树脂粉末的形状和大小对成型工艺的影响,以及加热温度对制件的抗冲击强度的影响,并比较了共混料与滚塑专用料的冲击强度,最后对研制的共混料进行了生产实验研究。结果表明:所研制的共混料可以满足汽车挡泥板滚塑成型要求。In this paper, for materials with high impact strength, LLDPE was blent by HDPE to modify the property of materials, and the best direction for producing materials was determined by thermal oxidative aging means. The thermal stability of materials in molding process and the influence of blent resin＇s shape and size on molding process were studied, while the influence of heating temperature on parts＇ impact strength was researched. At last, the impact strength comparison between blent materials and special materials was finished. Results indicated that the blent materials in this paper was eligible.

关 键 词：滚塑成型 汽车挡泥板 热稳定性 冲击强度 

分 类 号：TQ320.6[化学工程—合成树脂塑料工业]